\(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)
\(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
Gọi x_nFe2O3 ; y _nCuO
Theo đề bài ra có HPT: \(\left\{{}\begin{matrix}160x+80y=24\\3x+y=0,2.2\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0,1\\y=0,1\end{matrix}\right.\)
=> mFe2O3 = 0,1.160=16 (g)
\(\Rightarrow\%m_{Fe_2O_3}=\frac{16}{24}.100=66,67\%\)
%mCuO =100-66,67=33,33%